How to Use Webhooks.app

Step-by-step guides to help you debug, test, and forward webhooks from popular services

Debug Docker Hub Webhooks in Real Time

Set up webhook debugging for Docker Hub in under 5 minutes

Docker Hub can trigger a webhook each time you push a new image. This is useful for CI/CD pipelines or automation, but testing and inspecting these webhooks locally can be tricky.

With webhooks.app, you can:

  • Inspect payloads and headers in real time
  • Forward events to your local dev server
  • Replay events without pushing another image

1Create a Webhook Endpoint

  1. Go to webhooks.app
  2. Copy the auto-generated endpoint URL (e.g. https://webhooks.app/data/abc123)

2Configure Docker Hub

  1. In Docker Hub, go to your repository's Webhooks tab
  2. Click "Create Webhook"
  3. Give it a name and paste your webhooks.app URL
  4. Save

3Trigger a Webhook

Push a new image to your Docker Hub repo:

docker build -t yourname/yourimage:latest .
docker push yourname/yourimage:latest

4Forward to Your Local Server (Optional)

If you have a local API or app running, set a Forward URL in webhooks.app (e.g. http://localhost:3000/hooks/dockerhub).

Events will stream to your local machine in real time while you also see them in the browser.

Quick local server for testing:

node -e "require('http').createServer((req,res)=>{
  res.setHeader('Access-Control-Allow-Origin','*');
  res.setHeader('Access-Control-Allow-Methods','*');
  res.setHeader('Access-Control-Allow-Headers','*');
  if(req.method==='OPTIONS'){res.end();return}
  if(req.method==='POST'){
    let body='';req.on('data',d=>body+=d);
    req.on('end',()=>{console.log('POST:',body);res.end('OK')})
  }else res.end('Send POST')
}).listen(8000,()=>console.log('Server on :8000'))"

5Replay Events

Need to test again without pushing a new image? Click "Send to..." next to any stored event and send it to your local or external URL.

✅ Done!

You can now debug and test Docker Hub webhooks instantly. No tunneling setup, no waiting for new pushes.

Try it now - Free, no signup required

More Guides Coming Soon

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